extreme
The German word "extrem" is an adjective used to describe something as being at the highest or furthest degree or level. It can be used in a similar way to its English counterpart, to express something as being very intense, severe, or drastic. For example, "Das Wetter ist extrem kalt heute" (The weather is extremely cold today).
He runs extremely fast.
In this sentence, 'extrem' is used to emphasize the speed of the person running. It shows that the person runs at a considerably high speed.
The weather is extremely hot.
This sentence is used to express the intensity of the weather condition, in this case, to describe an intensely hot weather.
This task is extremely difficult.
The sentence is used to express the high level of difficulty of a certain task. The word 'extrem' is used to emphasize the degree of difficulty.